Kistler Model 9728A Impulse Force Hammer

The dynamic response of a mechanical structure while either in a development phase or an actual use environment can readily be determined by impulse force testing. Using an FFT analyzer, the transfer function of the structure can be determined from a force pulse generated by the impact of a hammer and the response signal measured with an accelerometer. The impulse force test method, yields extensive information about the frequency and attenuation behavior of the system under test.

The stainless steel head of an impulse force hammer, is equipped with a quartz, low impedance force sensor which accepts impact tips varying in hardness. A selection of rubber tips along with an extender mass allows the hammer to be tailored to impart to the test structure, a desired spectrum of frequencies.